Hanstad Engineering Services

With 15 years of experience as a reviewer of LOMRs for FEMA, we can help your project navigate the revision process. Whether you need assistance developing a duplicate effective model from the 1980s or need guidance satisfying reviewer comments, we have the specialized experience to help your map revisions go smoothly.

• Full development of Letters of Map Revision for FEMA (modeling, mapping, compliance documentation)
• Peer review of LOMR submittals
• Strategy consulting for land development and infrastructure projects involving floodplain revisions

Identifying flood risk is our specialty! We can assist you in identifying regulatory mapped flood zones and unmapped or previously unidentified flood risks on your project site.

• Regulatory floodplain analysis for land development, infrastructure, and renewable energy projects
• Due diligence floodplain and floodway evaluations
• Flood risk screening for solar developments and large-scale infrastructure

We have the ability to model drainage, flooding, stormwater, and floodplains in complex environments using cutting-edge tools. Whether you need modeling developed for regulatory purposes or you need a third-party review of your analysis, we're here to help.

• HEC-RAS 1D and 2D modeling for riverine and urban flooding
• HEC-RAS pipe flow / stormwater modeling
• HEC-HMS modeling for hydrologic analysis
• Bulletin 17C stream gage frequency analysis
• Model sensitivity analysis and QA/QC peer review services

As a highly specialized hydrologic and hydraulic modeler for FEMA floodplain mapping projects and revisions, we're often sought after for presentations, seminars, and workshops to teach, train, and instruct. Our audiences typically include engineers, floodplain managers, and attorneys. We can provide customized workshops and courses to fit your firm, association, or organization's need. We also offer one-on-one coaching and consultations for modeling and floodplain challenges.

• Public and private training on HEC-RAS 1D and 2D modeling as well as pipe flow modeling
• FEMA LOMR process and compliance training
• Advanced floodplain modeling workshops
• Custom mentoring and internal training programs for engineering firms and agencies